Patent Assignment
Reel/Frame 020650/0662
Assignment of Assignor's Interest
Recorded: 2008-03-14
Pages: 5
Assignors
CHEN, CHIEN CHING
Executed: 2008-02-13
LIU, WEN CHENG
Executed: 2008-02-13
CHUANG, TSUNG HSIEN
Executed: 2008-02-13
CHEN, JUI CHING
Executed: 2008-02-13
Assignee
EPOCH MATERIAL CO., LTD.,
NO. 2, LUKE 8TH ROAD, LU-CHUH HSIANG, TAIWAN
Covered Property
(1)
Aqueous Cleaning Composition for Semiconductor Copper Processing
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
May 10, 2022
From: EPOCH MATERIAL CO., LTD.
To: CMC MATERIALS TAIWAN CO., LTD.
Reel/Frame 060749/0266 →
Change of Name
Jun 22, 2022
From: EPOCH MATERIAL CO., LTD.
To: CMC MATERIALS TAIWAN CO., LTD.
Reel/Frame 060392/0312 →
Assignment of Assignor's Interest
Oct 12, 2023
From: CMC MATERIALS TAIWAN CO., LTD.
To: ENTEGRIS, INC.
Reel/Frame 065203/0964 →